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The Causes Analysis and Control Measures about Rapid Floor Heave in Deep Mine
, 2011 With the depth of coal mine increasing, it appeared a phenomenon of rapid floor heave in some roadways in a short time, which threaten greatly to the normal mine production and the lives safety of workers.
Zheng Bei, Sheng Zhang, Yi Fei Zhang
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Severe floor heave in gate roadways under high-intensity longwall mining is primarily controlled by mining-induced stress redistribution. Abutment pressure is preferentially transferred through the coal pillar into the floor, accelerating floor ...
Manchao He +4 more
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, 2020 The stability of the surrounding rock is the key problem regarding the normal use of coal mine roadways, and the floor heave of roadways is one of the key factors that can restrict high-yield and high-efficiency mining.
Yanlei Kang +5 more
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Under deep, high-intensity mining conditions, a high mineral pressure develops at the working face, which can easily cause floor heave deformation of the roadway.
Haojie Xue +6 more
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Numerical studies of floor heave control by the rock bolts reinforcement technology in retained gob-side gateroad [PDF]
The effectiveness of modified rock bolts reinforcement technology for floor heave control in gob-side entry retaining was studied in this paper. A finite-element numerical simulation was used to analyse stress-strain state of surrounding rocks before and
Sakhno Svitlana +3 more
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, 2013 Comparing with the resin bolt, the hydraulic expansion bolt has different anchoring mechanism and application advantage. According to the working mechanism of the hydraulic expansion bolt, its anchoring force is expressed in four forms including support ...
Qingliang Chang +3 more
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, 2018 Controlling floor heave plays an important role in the stability of mining roadways that is pivotal to the sustainable, safe, and efficient development of coal resources in underground coal mines.
Gangye Guo +4 more
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The issue of significant floor heave deformation in gob-side entry retaining has long been a challenging problem in the context of longwall mining. This paper studies the floor heave failure mechanism and control method for gob-side entry retaining with ...
Jiong Wang +4 more
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Modelling and performance of an active heave compensator for offshore operations
, 2007 The development of offshore oil and gas fields require the placement of different equipment on the sea floor. This is done by deploying the equipment from vessels operating in dynamic positioning on the surface.
Perez, Tristan +3 more
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